Fluid level monitor



FIG. 1 is a front elevational view of a fluid level monitor showing our new design, the rear being plain and unornamented;

FIG. 2 is a bottom plan view thereof, the top being a mirror image thereto;

FIG. 3 is a right front perspective view thereof, the left side being plain and unornamented. 

The ornamental design for a fluid level monitor, substantially as shown and described. 